JPS573419A - Phase comparator - Google Patents

Phase comparator

Info

Publication number
JPS573419A
JPS573419A JP7687280A JP7687280A JPS573419A JP S573419 A JPS573419 A JP S573419A JP 7687280 A JP7687280 A JP 7687280A JP 7687280 A JP7687280 A JP 7687280A JP S573419 A JPS573419 A JP S573419A
Authority
JP
Japan
Prior art keywords
output
phase
lead
nand
input
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7687280A
Other languages
Japanese (ja)
Inventor
Yoshitomo Sakado
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7687280A priority Critical patent/JPS573419A/en
Publication of JPS573419A publication Critical patent/JPS573419A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/26—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being duration, interval, position, frequency, or sequence

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Manipulation Of Pulses (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:To make unnecessary a kick-off circuit for PLL in burst operation, by taking the phase characteristics of a phase comparator as saw-tooth shape and taking the average value of an output voltage as a middle value of high and low level. CONSTITUTION:An NAND 8 is operated as a phase comparator having a triangle phase characteristics. A D-FF9 detects the phase lag and lead of an input signal, and it is at low level when the phase of an input Y is lead to that of an input X and at high level when lagged. Thus, when an output Z of an EX-OR1 is lead, the output of the NAND gate 8 is outputted as it is, and when lagged, it is inverted. Thus, the output Z causes a saw tooth wave characteristics. Further, one of the inputs X, Y is fixed and a signal of 50% duty is inputted to another, the output of the NAND 8 has 50% duty and the average voltage is at the middle of high and low levels.
JP7687280A 1980-06-06 1980-06-06 Phase comparator Pending JPS573419A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7687280A JPS573419A (en) 1980-06-06 1980-06-06 Phase comparator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7687280A JPS573419A (en) 1980-06-06 1980-06-06 Phase comparator

Publications (1)

Publication Number Publication Date
JPS573419A true JPS573419A (en) 1982-01-08

Family

ID=13617721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7687280A Pending JPS573419A (en) 1980-06-06 1980-06-06 Phase comparator

Country Status (1)

Country Link
JP (1) JPS573419A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58129622A (en) * 1982-01-22 1983-08-02 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Syncronizer for clock control type data processor
JPH0322436U (en) * 1989-07-17 1991-03-07

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58129622A (en) * 1982-01-22 1983-08-02 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Syncronizer for clock control type data processor
JPH0322436U (en) * 1989-07-17 1991-03-07

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